666150126032340 has 36 divisors (see below), whose sum is σ = 2020655382298644. Its totient is φ = 177640033608576.

The previous prime is 666150126032327. The next prime is 666150126032351. The reversal of 666150126032340 is 43230621051666.

It can be written as a sum of positive squares in 2 ways, for example, as 212851876229136 + 453298249803204 = 14589444^2 + 21290802^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-3 number, since 3×666150126032340³ (a number of 45 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1850417016577 + ... + 1850417016936.

Almost surely, 2^{666150126032340} is an apocalyptic number.

666150126032340 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

666150126032340 is an abundant number, since it is smaller than the sum of its proper divisors (1354505256266304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

666150126032340 is a wasteful number, since it uses less digits than its factorization.

666150126032340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3700834033528 (or 3700834033523 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 45.

The spelling of 666150126032340 in words is "six hundred sixty-six trillion, one hundred fifty billion, one hundred twenty-six million, thirty-two thousand, three hundred forty".